diff --git a/cubicweb_squareui/views/__init__.py b/cubicweb_squareui/views/__init__.py
index e0683079922cc89689495fabc8c74cb2935db7ee_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvX19pbml0X18ucHk=..dfcc55c045ad9c6fdad9165816fd193056ca3467_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvX19pbml0X18ucHk= 100644
--- a/cubicweb_squareui/views/__init__.py
+++ b/cubicweb_squareui/views/__init__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # copyright 2012-2022 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr -- mailto:contact@logilab.fr
 #
diff --git a/cubicweb_squareui/views/basetemplates.py b/cubicweb_squareui/views/basetemplates.py
index e0683079922cc89689495fabc8c74cb2935db7ee_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvYmFzZXRlbXBsYXRlcy5weQ==..dfcc55c045ad9c6fdad9165816fd193056ca3467_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvYmFzZXRlbXBsYXRlcy5weQ== 100644
--- a/cubicweb_squareui/views/basetemplates.py
+++ b/cubicweb_squareui/views/basetemplates.py
@@ -113,11 +113,11 @@
     _ = self._cw._
     value = self._cw.view("oneline", self._cw.eid_rset(state[1][1]))
     target, eid, r_type, searched_type = self._cw.search_state[1]
-    cancel_link = """<a href="%(url)s" role="button"
-    class="btn btn-default" title="%(title)s">%(title)s</a>""" % {
-        "url": self._cw.build_url(str(eid), vid="edition", __mode="normal"),
-        "title": _("cancel"),
-    }
+    cancel_link = """<a href="{url}" role="button"
+    class="btn btn-default" title="{title}">{title}</a>""".format(
+        url=self._cw.build_url(str(eid), vid="edition", __mode="normal"),
+        title=_("cancel"),
+    )
     msg = " ".join(
         (
             _("searching for"),
diff --git a/cubicweb_squareui/views/component.py b/cubicweb_squareui/views/component.py
index e0683079922cc89689495fabc8c74cb2935db7ee_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvY29tcG9uZW50LnB5..dfcc55c045ad9c6fdad9165816fd193056ca3467_Y3ViaWN3ZWJfc3F1YXJldWkvdmlld3MvY29tcG9uZW50LnB5 100644
--- a/cubicweb_squareui/views/component.py
+++ b/cubicweb_squareui/views/component.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # copyright 2014-2022 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr -- mailto:contact@logilab.fr
 #
diff --git a/doc/conf.py b/doc/conf.py
index e0683079922cc89689495fabc8c74cb2935db7ee_ZG9jL2NvbmYucHk=..dfcc55c045ad9c6fdad9165816fd193056ca3467_ZG9jL2NvbmYucHk= 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 #
 # Squareui documentation build configuration file, created by
 # sphinx-quickstart on Wed Jun 15 10:14:35 2011.
diff --git a/setup.py b/setup.py
index e0683079922cc89689495fabc8c74cb2935db7ee_c2V0dXAucHk=..dfcc55c045ad9c6fdad9165816fd193056ca3467_c2V0dXAucHk= 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@
 for entry in ("__depends__",):  # "__recommends__"):
     requires.update(__pkginfo__.get(entry, {}))
 install_requires = [
-    "{0} {1}".format(d, v and v or "").strip() for d, v in requires.items()
+    "{} {}".format(d, v and v or "").strip() for d, v in requires.items()
 ]